Questions tagged [polymorphism] (19)

Is there a polymorphism in python? If there is something in what form is it expressed? For example, statically typed languages - it is clear why you need it.

class A(): def __init__(): pass def cprint(): print("A") class B(): def __init__(): pass def cprint(): print("B") class C(): def __init__(): pass def cprint(): print("C") obj_list = [A, B, C] for obj in obj_list: obj.cprint()

I can not understand one point of polymorphism. It can be represented in the form of the game. Let's say we have the types of game characters that inherit from the generic type Hero. class Hero { } class Hero extends Hero1 { } class Hero2 extends Hero { } Hero3 class extends Hero { } class Hero4 extends Hero { } c...

Good day! Condition: I have parent and child from him the methods I need to modify the functionality of an inherited method, which may use or override the existing method, or to override the original new.Questions How can you visualize these approaches? Override - crossed out and written over, but New ? When to use override...

Good day! Trying to figure out the details of the PLO. A simple example. There is an abstract class Layer:public abstract class Layer: ICreatable { float[,] Heights { get; set; } public abstract void Create(); } The interface that it implements, is also simple:interface ICreatable { void Create(); } I want to create a cl...

Colleagues, good afternoon. Arose the architectural task, which is not immediately mastered. So, in the application there is a processing of the data depending on two parameters(m, n). Depending on the combination of parameters can be performed some action, sometimes the same, for different settings, sometimes different. T...

Why you need to write IList list = new list() , but not List List = new List() ? I understand why need a interface in a General sense, but do not understand why it should be used in this situation. What happens in this situation, the Base A = new Derived()? And how it differs from the Derived B = new Derived()?

Question about this, there is a superclasspublic class SuperClass { //... public void method0(){ /*Call this block of code A*/} public void method1(){ this.method0() }; //... } And inherit from it class public class SubClass extends SuperClass { //... @Override public void method0(){ /*And the B*/} //... } What code will be...

Given the task. Apply all the OOP principles in the code of the game "Minesweeper". Game written, created two classes: "Box", where all the logic is processed, and the class "Game" where the client invokes the necessary methods and gets results. Objects are present, encapsulation, but inheritance and polymorphism do not kno...

Help with the example using annotation @Many-to-Any, @One-to-Any. there is very little information on the Internet, and to take advantage of such a simple solution - damn nice. task. HumanUnits -id -data MachineUnits -id -anotherData UnitTable -id One-to-any (HumanUnit.id or MachineUnit.id) guided by examples from the Int...